I switched to Lion a while back and just noticed that when I save a text file in TextEdit, it uses LF for line breaks. I looked around everywhere I could think of on my Lion computer and could not find any evidence of files using CR for line breaks even though I remember that Macs always used to use CR despite Unix using LF and Windows using CR+LF. When I learned that OS X was based on Unix, I even checked on my Snow Leopard and was disappointed that it stilled used CR.
So did Lion switch to using LF?
The strangest thing is I searched all over the web and cannot find any evidence of Lion using LF.